Improvement in door-bolts



Nb; 105,489. PATENTED JULY 19, 1870.

3.13. PRINDLE, .DOOR BOLT} Inv enter New. York, have invented certainnew and useful Im- 3 to the face of a door, and

with two laterally projcoting vings and a recess for 1 Inthe annexeddrawing The outer face of the bolt A is slightly flattened i fiinitmlgives 'RUSSEL PRINDLE, or

ailment @jijiirg,

NORWICH, NEW YORK.

Letters Patent No. 105,489, dated July 19, 1870,

IMPROVEMENT IN DOOR-BOLTS,

The Schedule referred to in these Letters Patent and making part of thesame To all whom it may concern.-

Be it known that I, Russet. B. Permits, of Norwich, in the county ofOhenango and in the State of provements in Door-Bolts; and dohereby-declare that the following is a full,.cleiir, and exactdescription thereof, reference beinghad to the accompan yin g drawingmaking apart of this specification, in which- Figure 1 is afrontelevation of my device as appliedv Figure 2 is a vertical centralsection of the same on Letters of like name and kind refer to like partsin each of the figures.

The object of my invention 'is to produce aspriug door-bolt that, whilepossessing equal strength and efiii'aiency, shall cost less than thosein ordinary use;- am v i i It consists in forming said bolt of onepiece, provided containing the spring, and having two ormorelongitudinal slots for the reception of the screws used forattaching the bolt to or upon the face of a door, as is hereinafter setforth. a v

A represents the bolt, formed of half round iron, secured to andprojecting outward from either side of winch, in "a line with its innerface, is a wing, B, having a thickness of about one eighth of anineh anda width sufiicient to enable itto contain a slot, 0, passinglongitudinallythrough the same near 'its forward.

end. i 4

near its rear end, at which point is provided a third slot, D,corresponding in size and in relative direction with the slot 0.

A semicircular recess, E, formed within the inner face of the bolt A andextending from the rear end of the slot D forward about one-half thelength of said bolt, serves to contain a spiral spring, 1 r

The rear end of the bolt being flattened, and having attached thereto achain, G, the device is complete, and is applied to'a door by means ofthree screws, H and H, which, passing through the s ots G'and D into thedoor I, with their heads bearing lightly againstthe outer face of saidbolt and of the wings, hold the same firmly in position against thedoor, while allowing to it free longitudinal motion thereon.

The spring 1*, bearing against the forward'end of thereccss' I) andagainstthe screw H", presses the bolt upward into engagement with thekeeper, except when withdrawn by means of the chain. Having thus fullyset forth the nature and merits of my invention,

1 What I claim as new isi As a new article of manufacture, the bolt A,provided with the wings B, having therein the slots 0 and D, the recessE, and the spring F, substantially as shown and described.

In testimony that I claim the foregoing, I have hereunto set my handthis 11th day of J one, 1870. RUSSEL B.- PRINDLE.

Witnesses E. H. Pmunmc, H. G. PRINDLE.

